The Washer,spring Tension, cataloged under National Stock Number 5310-00-544-3166, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-544-3166 |
| Primary Part Number | 2662252 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ES-F53-2 FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 1/2 HARD TEMPER MIL SPEC 2ND MATERIAL RESPONSE OR QQ-S-766 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-766 1/2 HARD TEMPER FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.820 INCHES NOMINAL IN |
| Material Thickness | 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 301 OR STEEL COMP 302 OVERALL |
| Hole Diameter | 1.969 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2662252 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 2662252 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-00-544-3166 is a Washer,spring Tension, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-544-3166 has 1 manufacturer part number on file: 2662252 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 2662252: Overall Height: 0.200 INCHES NOMINAL IN; Surface Treatment Document and Classification: ES-F53-2 FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 1/2 HARD TEMPER MIL SPEC 2ND MATERIAL RESPONSE OR QQ-S-766 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-766 1/2 HARD TEMPER FED SPEC 2ND MATERIAL RESPONSE OVERALL; Outside Diameter: 2.820 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.